Merc. 225HP EFI Loss Power

Deergreen

Recruit
Joined
Apr 19, 2005
Messages
1
Merc. 225HP EFI Loss Power

I have 96' 225HP XXL EFI Mercury OB, that losses power at times when in full throttle, the motor starts fine every time and idles fine. At times the motor will cut back in power and the temp. gauge will come on, but the motor seems to be pissing out plenty of water. Once this happens I bring the motor to neutral, turn it off, wait 10 to 15 seconds, turn it back on, the temp gauge light goes out and I can go again at full throttle, sometimes it will cut back in power again and other times it will not..I can't seem to figure it out and neither can the so called shops that keep it for months and the problem still remains....
 

Coolmaker

Petty Officer 2nd Class
Joined
Mar 15, 2005
Messages
134
Re: Merc. 225HP EFI Loss Power

Re: Merc. 225HP EFI Loss Power

Bad t-stats, bad head gasket, or exhaust gasket all of these can cause what you have happening. Also check the temp sending unit, it will cut the computer back at the hot temp signal.
 
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